body {
    background-color: #ccc;
}

.login {
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -130px;
    margin-left: -250px;
    width: 500px;
    height: 260px;
    padding: 50px 20px 50px 10px;
    border-radius: 15px;
}